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Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
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Chitosan-functionalized maize biomass for iron sorption: A multidimensional green approach
Mohamed R El-Aassar1, Hassan M A Hassan1, Ebtsam K Alenezy1
1Department of Chemistry, College of Science, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia.
International Journal of Biological Macromolecules
|January 23, 2026
Summary
A novel Zea mays-chitosan@anthracite (MZ-CS@An) biohybrid adsorbent efficiently removes Fe(II) from water. This eco-friendly material demonstrates cost-effectiveness and reusability for sustainable water purification.
Area of Science:
- Materials Science
- Environmental Chemistry
- Water Treatment
Background:
- Iron(II) contamination poses risks to aquatic ecosystems and human health.
- Development of sustainable and cost-effective adsorbents is crucial for water purification.
- Biohybrid materials offer promising solutions due to their unique properties and environmental friendliness.
Purpose of the Study:
- To fabricate and characterize a novel eco-friendly biohybrid adsorbent, Zea mays-chitosan@anthracite (MZ-CS@An).
- To investigate the adsorption performance of MZ-CS@An for Fe(II) removal from aqueous solutions.
- To optimize adsorption conditions and evaluate the material's cost-effectiveness and reusability.
Main Methods:
- Fabrication of MZ-CS@An using chitosan, anthracite, and activated Zea mays.
- Physicochemical characterization using XRD, FTIR, BET, TG/DTG, FESEM, EDX, and Raman spectroscopy.
- Optimization of adsorption parameters (Fe(II) concentration, adsorbent dosage, contact time) using Box-Behnken Design (BBD).
- Kinetic, isotherm, and thermodynamic studies to elucidate the adsorption mechanism.
Main Results:
- MZ-CS@An exhibited robust structural features and high surface functionality.
- Adsorption process was optimized, with pseudo-second-order kinetics and Jossens isotherm models providing the best fit.
- Physisorption was identified as the dominant mechanism, with adsorption being spontaneous and endothermic.
- Low production cost ($0.09/kg/cycle) and high efficiency (84.87 µg/100 L) were achieved.
- The adsorbent maintained high removal efficiency over five regeneration cycles.
Conclusions:
- MZ-CS@An is a highly effective, sustainable, and cost-efficient adsorbent for Fe(II) removal.
- The biohybrid material demonstrates significant potential for practical applications in water purification.
- The study highlights the advantages of using bio-based materials in environmental remediation.
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